Nakaya, Amkor and Toshiba Provide Update on System LSI Joint Venture

Nakaya Microdevices Corporation ("NMD”), Amkor Technology, Inc. (Nasdaq: AMKR) and Toshiba Corporation (TOKYO: 6502) today announced that they are continuing their negotiations of definitive agreements pursuant to the non-binding memorandum of understanding announced on April 28, 2009 for the formation of a joint venture in Japan to provide system LSI assembly and testing services.

The initial target date of October 1 for the start of operations will be extended and the parties plan to announce the proposed commencement date when definitive agreements are finalized. The terms of the joint venture have not yet been determined and the formation of the joint venture remains subject to the negotiation of definitive agreements.

About Nakaya

Founded in 1970 in Oita, Japan, Nakaya Microdevices Corporation has served as an independent provider of semiconductor assembly and test for nearly 40 years. More information is available in Japanese at http://www.nakaya-md.co.jp/

About Amkor

Amkor is a leading provider of semiconductor assembly and test services to semiconductor companies and electronics OEMs. More information on Amkor is available from the company’s SEC filings and on Amkor’s website: www.amkor.com.

About Toshiba

Toshiba is a world leader and innovator in pioneering high technology, and a diversified manufacturer and marketer of advanced electronic and electrical products spanning information & communications systems; digital consumer products; electronic devices and components; power systems, including nuclear energy; industrial and social infrastructure systems; and home appliances.

Toshiba was founded in 1875, and today operates a global network of more than 730 companies, with 199,000 employees worldwide. Visit Toshiba's web site at www.toshiba.co.jp/index.htm

NMD
Disclaimer:

This press release contains forward-looking statements concerning future plans, strategies and the performance of Nakaya Microdevices Corporation. These statements are based on management’s assumptions and beliefs in light of the economic, financial and other data currently available. Furthermore, they are subject to a number of risks and uncertainties. Nakaya therefore wishes to caution readers that actual results might differ materially from our expectations. Major risk factors that may have a material influence on results are indicated below, though this list is not necessarily exhaustive.

• Disputes including lawsuits in Japan and other countries;
• Success or failure of alliances or joint ventures promoted in collaboration with other companies;
• Success or failure of new businesses or R&D investment;
• Changes in political and economic conditions in Japan and abroad; unexpected regulatory changes;
• Major disasters, including earthquakes and typhoons;
• Rapid changes in the supply/demand situation in major markets and intensified price competition;
• Significant capital expenditure for production facilities and rapid changes in the market;
• Changes in financial markets, including fluctuations in interest rates and exchange rates.

Amkor
Forward-Looking Statement Disclaimer

This press release contains forward-looking statements within the meaning of U.S. federal securities laws. All statements other than statements of historical fact are considered forward-looking statements including, without limitation, statements regarding the formation of the joint venture. These forward-looking statements involve a number of risks, uncertainties, assumptions and other factors that could affect future results and cause actual results and events to differ materially from historical and expected results and those expressed or implied in the forward-looking statements, including, but not limited to, the following: the memorandum of understanding is non-binding; the formation, structure and content of the joint venture are subject to further negotiation, entry into definitive agreements and any conditions contained in such agreements; and the performance of the joint venture will depend on the parties’ ability to successfully integrate and manage their contributions to the venture. Other important risk factors that could affect the outcome of the events set forth in these statements and that could affect the operating results and financial condition of the joint venture or Amkor are discussed in Amkor’s Annual Report on Form 10-K for the year ended December 31, 2008 and in Amkor’s subsequent filings with the Securities and Exchange Commission made prior to or after the date hereof. Amkor undertakes no obligation to review or update any forward-looking statements to reflect events or circumstances occurring after the date of this press release.

Toshiba
Disclaimer:

This press release contains forward-looking statements concerning future plans, strategies and the performance of Toshiba Group. These statements are based on management’s assumptions and beliefs in light of the economic, financial and other data currently available. Furthermore, they are subject to a number of risks and uncertainties. Toshiba therefore wishes to caution readers that actual results might differ materially from our expectations. Major risk factors that may have a material influence on results are indicated below, though this list is not necessarily exhaustive.

• Disputes including lawsuits in Japan and other countries;
• Success or failure of alliances or joint ventures promoted in collaboration with other companies;
• Success or failure of new businesses or R&D investment;
• Changes in political and economic conditions in Japan and abroad; unexpected regulatory changes;
• Major disasters, including earthquakes and typhoons;
• Rapid changes in the supply/demand situation in major markets and intensified price competition;
• Significant capital expenditure for production facilities and rapid changes in the market;
• Changes in financial markets, including fluctuations in interest rates and exchange rates.